All In One MATHEMATICS CBSE Class 8>Chapter 7 - Cubes and Cube Roots>Topic Exercise 7.1>Q 3

HARD

8th CBSE

IMPORTANT

Earn 100

Is $1188$ a cube $?$ If not find the smallest number by which $1188$ must be multiplied to get a perfect cube.

Important Questions on Cubes and Cube Roots

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8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 7 - Cubes and Cube Roots>Topic Exercise 7.1>Q 4

Show that

\frac{- 125}{5832}

is a cube of a rational number.

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IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 7 - Cubes and Cube Roots>Topic Exercise 7.1>Q 5

Find the cube of

5 \frac{2}{7}

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8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 7 - Cubes and Cube Roots>Topic Exercise 7.1>Q 6

If the volume of a cube whose surface area is

216 m^{2}

is

k m^{2}

then find

k

.

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8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 7 - Cubes and Cube Roots>Topic Exercise 7.1>Q 7

Solve:

{(24^{2} + 7^{2})^{\frac{1}{2}}}^{3}

HARD

8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 7 - Cubes and Cube Roots>Topic Exercise 7.1>Q 8

Find the smallest number by which

3087

must be divided, so that the quotient is a perfect cube.

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IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 7 - Cubes and Cube Roots>Topic Exercise 7.1>Q 9

Find the unit digit of the cube of the following number.

$1109, 117, 565, 390$ .

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8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 7 - Cubes and Cube Roots>Topic Exercise 7.1>Q 10

Is

\frac{216}{343}

a cube of rational number

?

HARD

8th CBSE

IMPORTANT

All In One MATHEMATICS CBSE Class 8>Chapter 7 - Cubes and Cube Roots>Topic Exercise 7.2>Q 1

Find the cube root of

19683

by factorisation method.